Improvement in dies for forming horseshoe-calks



L. PRICHAHD. Dies for Forming Horseshoe Calks.

Patented May 18,1875.

WITNESSES ATTORNEYS.

THE GRAPHKZ C0.PHOTD -LITHQ 8:41 PARK PLAGLNVY.

UNITED STATES PATENT OFFICE.

LEONARD PRIOHARD, OF SWEET VALLEY, PENNSYLVANIA.

IMPROVEMENT IN DIES FOR FORMING HORSESHOE-CALKS.

Specification forming part of Letters Patent No. 163,408, datedJ May 18, 1875; application filed March 29, 1875.

To all whom it may concern:

Be it known that l, LEONARD PRICHARD, of Sweet Valley, Luzerne county, Pennsylvania, have invented a new and Improved Die for Forming Horseshoe-Oalks, of which the following is a specification:

In the drawing, Figure l represents a top' view, and Fig. 2 a vertical longitudinal section, of the die for forming horeshoes-calks; and Fig. 3, a perspective View of the calk formed therein.

Similar letters of reference indicate correspending parts.

My invention has for its object to furnish to blacksmiths an -improved die for forming quickly and accurately horseshoe-calks of superior shape and quality; and the invention consists in a die with a base part to be secured in the anvil, and lateral top grooves-one for forming the shape and tapering base ot' the calli, the other for producing the central oonnecting-spur.

In the drawing, A represents a steel die, of suitable size for horseshoe-calks, which is rigidly secured by a downwardly-projecting basepiece, B, in the anvil. The upper part is provided with lateral grooves for forming consecutively the shape of the calks. The lateral sides of one groove, G, are slightly inclined, to give the proper taper from the upper part or base of the call; to the lower part. A backward inclina-tion, a, at the upper end of one side of this groove serves to draw out the base a of the call; to greater width, so that it may not only be welded more rmly to the shoe,

but prevents also its drawing oft' therefrom in sharpening the calk.

After the calk is formed in the first groove it is turned half over and placed in the second groove C, the base ofwhich is equal in Width to the side of the oalk, While the end wall D of the die is equal in height to the Width of the extended base of the ealk.

A central notch, b, ofthe end wall D serves to cut out the spur b from the tapering base, by means of a set-piece of eorrespondin g shape, as indicated in Figs. 2 and 3.

The spur in the center of the ealk prevents the breaking `of the shoe, which sometimes happens in ordinary eases when the spur is at the end of the calk.

Any kind of steel may be used for the calks, and the heel-calks may be made in the same die with the same facility and rapidity as the front calks.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The improved die A for forming ealks, oonstructed, substantially as herein described and shown, With a groove having tapering sides and an inclined edge, a, upon which to form the iiange a', and a second groove having a vertical Wall With a notch cut in the center, into which a portion of the ange is driven to form the spur on the calk.

LEONARD PRIOHARD.

Witnesses:

N. MCNEAL, A. W. GREGORY. 

